Cable hanger production system and production method

Abstract

A cable hanger which can alternately and continuously form a Z-winding spiral and an S-winding spiral using a hanger wire. A hanger wire is supplied from one end of a housing and sent out from the other end thereof. A plurality of spiral forming dice are accommodated in a cylindrical space in the housing. Each spiral forming die includes a bottom face forming a shape corresponding to a curvature of a spiral on a plane intersecting with an axis at right angles between an inner peripheral face of the housing and the bottom face, a Z-winding wall face forming a shape corresponding to a pitch of the Z-winding spiral inclined with respect to the plane, and an S-winding wall face forming a shape corresponding to a pitch of the S-winding spiral. The S-and Z-winding wall faces intersect each other at a central portion of the spiral forming die.

The invention claimed is: 
     
       1. A cable hanger production system in which a Z-winding spiral and an S-winding spiral are alternately and continuously formed along an axis via a switching part, comprising
 a housing having a cylindrical space in which a hanger wire is supplied from one end of the housing and the hanger wire is sent out from the other end thereof, and 
 a plurality of spiral forming dice which are accommodated in the cylindrical space of the housing such that the spiral forming dice are adjacent to each other and configured to rotate independently from one another, wherein 
 each of the spiral forming dice includes 
 a bottom face forming a shape corresponding to a curvature of a spiral on a plane intersecting with the axis at right angles between an inner peripheral face of the housing and the bottom face, 
 a Z-winding wall face forming a shape corresponding to a pitch of the Z-winding spiral which is inclined with respect to the plane, and an S-winding wall face forming a shape corresponding to a pitch of the S-winding spiral, 
 the Z-winding wall face and the S-winding wall face intersect with each other at a central portion of the spiral forming die in a longitudinal direction thereof, and a region sandwiched between the Z-winding wall face and the S-winding wall face is constituted by the bottom face. 
 
     
     
       2. The cable hanger production system according to  claim 1 , wherein when the hanger wire is inserted, the intersections of the spiral forming dice are positioned at locations arranged along the axial direction. 
     
     
       3. The cable hanger production system according to  claim 1 , wherein when the Z-winding spiral or S-winding spiral is formed, the Z-winding wall faces or the S-winding wall faces of the spiral forming dice are sequentially positioned at locations which are connected to each other. 
     
     
       4. The cable hanger production system according to  claim 3 , wherein a positioning operation of the spiral forming dice at forming positions of the Z-winding spiral or S-winding spiral from the inserting positions of the hanger wire is carried out by simultaneously rotating the plurality of second and subsequent spiral forming dice with respect to the first spiral forming die as a reference as counted from a hanger wire supply end of the housing, and by stopping the spiral forming dice in the order from a front side. 
     
     
       5. The cable hanger production system according to  claim 3 , wherein the spiral forming dice are positioned by shifting from the forming positions of the Z-winding spiral or S-winding spiral to the forming positions of the S-winding spiral or Z-winding spiral when the switching part is formed. 
     
     
       6. The cable hanger production system according to  claim 5 , wherein position shifting operation of the spiral forming dice from the forming positions of the Z-winding spiral or S-winding spiral to the forming positions of the S-winding spiral or Z-winding spiral is carried out by simultaneously rotating the plurality of second and subsequent spiral forming dice with respect to the first spiral forming die as a reference as counted from a hanger wire supply end of the housing, and by stopping the spiral forming dice in the order from a front side. 
     
     
       7. The cable hanger production system according to  claim 4 , wherein rotation velocities of the spiral forming dice are set to such a value that each spiral forming die rotates through a rotation angle required for shifting from the forming position of the Z-winding spiral or S-winding spiral to the forming position of the S-winding spiral or Z-winding spiral while the hanger wire moves from a front end to a rear end of the spiral forming dice. 
     
     
       8. The cable hanger production system according to  claim 1 , wherein the rotation velocities of the spiral forming dice are uniform velocities. 
     
     
       9. The cable hanger production system according to  claim 1 , wherein the first spiral forming die as counted from the hanger wire supply end of the housing is fixed, and second and subsequent spiral forming dice are rotated. 
     
     
       10. The cable hanger production system according to  claim 1 , wherein at least three spiral forming dice are required. 
     
     
       11. The cable hanger production system according to  claim 2 , wherein the Z-winding spiral or S-winding spiral is formed, the Z-winding wall faces or the S-winding wall faces of the spiral forming dice are sequentially positioned at locations which are connected to each other. 
     
     
       12. The cable hanger production method system according to  claim 11 , wherein a positioning operation of the spiral forming dice at forming positions of the Z-winding spiral or S-winding spiral from the inserting positions of the hanger wire is carried out by simultaneously rotating the plurality of second and subsequent spiral forming dice with respect to the first spiral forming die as a reference as counted from a hanger wire supply end of the housing, and by stopping the spiral forming dice in the order from a front side. 
     
     
       13. The cable hanger production system according to  claim 11 , wherein the spiral forming dice are positioned by shifting from the forming positions of the Z-winding spiral or S-winding spiral to the forming positions of the S-winding spiral or Z-winding spiral when the switching part is formed. 
     
     
       14. The cable hanger production system according to  claim 13 , wherein position shifting operation of the spiral forming dice from the forming positions of the Z-winding spiral or S-winding spiral to the forming positions of the S-winding spiral or Z-winding spiral is carried out by simultaneously rotating the plurality of second and subsequent spiral forming dice with respect to the first spiral forming die as a reference as counted from a hanger wire supply end of the housing, and by stopping the spiral forming dice in the order from a front side. 
     
     
       15. The cable hanger production system according to  claim 6 , wherein rotation velocities of the spiral forming dice are set to such a value that each spiral forming die rotates through a rotation angle required for shifting from the forming position of the Z-winding spiral or S-winding spiral to the forming position of the S-winding spiral or Z-winding spiral while the hanger wire moves from a front end to a rear end of the spiral forming dice. 
     
     
       16. The cable hanger production system according to  claim 12 , wherein rotation velocities of the spiral forming dice are set to such a value that each spiral forming die rotates through a rotation angle required for shifting from the forming position of the Z-winding spiral or S-winding spiral to the forming position of the S-winding spiral or Z-winding spiral while the hanger wire moves from a front end to a rear end of the spiral forming dice. 
     
     
       17. The cable hanger production system according to  claim 14 , wherein rotation velocities of the spiral forming dice are set to such a value that each spiral forming die rotates through a rotation angle required for shifting from the forming position of the Z-winding spiral or S-winding spiral to the forming position of the S-winding spiral or Z-winding spiral while the hanger wire moves from a front end to a rear end of the spiral forming dice. 
     
     
       18. The cable hanger production system according to  claim 4 , wherein the rotation velocities of the spiral forming dice are uniform velocities. 
     
     
       19. The cable hanger production system according to  claim 12 , wherein the rotation velocities of the spiral forming dice are uniform velocities. 
     
     
       20. The cable hanger production system according to  claim 6 , wherein the rotation velocities of the spiral forming dice are uniform velocities. 
     
     
       21. The cable hanger production system according to  claim 14 , wherein the rotation velocities of the spiral forming dice are uniform velocities. 
     
     
       22. The cable hanger production system according to  claim 7 , wherein the rotation velocities of the spiral forming dice are uniform velocities. 
     
     
       23. The cable hanger production system according to  claim 15 , wherein the rotation velocities of the spiral forming dice are uniform velocities. 
     
     
       24. The cable hanger production system according to  claim 16 , wherein the rotation velocities of the spiral forming dice are uniform velocities. 
     
     
       25. The cable hanger production system according to  claim 17 , wherein the rotation velocities of the spiral forming dice are uniform velocities. 
     
     
       26. A cable hanger production system in which a Z-winding spiral and an S-winding spiral are alternately and continuously formed along an axis via a switching part, comprising
 a wire processing device including 
 a housing having a cylindrical space in which a hanger wire is supplied from one end of the housing and the hanger wire is sent out from the other end thereof, and 
 a plurality of spiral forming dice which are accommodated in the cylindrical space of the housing in adjacent to one another such that the spiral forming dice are configured to be rotated by a motor independently from each other; and 
 a wire supply device which is disposed in front of the wire processing device for supplying the hanger wire toward the one end of the wire processing device; wherein 
 the spiral forming dice are positioned by shifting from positions for forming the Z-winding spiral or S-winding spiral to positions for forming the S-winding spiral or Z-winding spiral by simultaneously rotating second and subsequent spiral forming dice with respect to the first spiral forming die as a reference as counted from the one end of the wire processing device, and by stopping the spiral forming dice in the order from a front side; and 
 rotation velocities of the spiral forming dice by the motor are set to such a value that the each spiral forming die rotates through a rotation angle required for shifting from the forming position of the Z-winding spiral or S-winding spiral to the forming position of the S-winding spiral or Z-winding spiral while the hanger wire supplied by the wire supply device moves from a front end to a rear end of the spiral forming dice, 
 wherein each of the spiral forming dice includes: 
 a bottom face forming a shape corresponding to a curvature of the spiral on a plane intersecting with the axis at right angles between inner peripheral face of the housing and the bottom face; and 
 a Z-winding wall face forming a shape corresponding to a pitch of the Z-winding spiral which is inclined with respect to the plane, and an S-winding wall face forming a shape corresponding to a pitch of the S-winding spiral. 
 
     
     
       27. A production method for forming a cable hanger in which a Z-winding spiral and an S-winding spiral are alternately and continuously formed along an axis via a switching part; wherein
 a hanger wire is supplied from one end of a housing and sent out from the other end thereof, a plurality of spiral forming dice are accommodated in a cylindrical space of the housing such that the spiral forming dice are adjacent to each other and configured to rotate independently from each other, the spiral forming dice are used; 
 each of the spiral forming dice includes 
 a bottom face forming a shape corresponding to a curvature of a spiral on a plane intersecting with the axis at right angles between an inner peripheral face of the housing and the bottom face, 
 a Z-winding wall face forming a shape corresponding to a pitch of the Z-winding spiral which is inclined with respect to the plane, and an S-winding wall face forming a shape corresponding to a pitch of the S-winding spiral, 
 the Z-winding wall face and the S-winding wall face intersect with each other at a central portion of the spiral forming die in a longitudinal direction thereof, and a region sandwiched between the Z-winding wall face and the S-winding wall face is constituted by the bottom face, 
 in the method; 
 after a first step of inserting the hanger wire along the intersections into the spiral forming dice positioned at locations where the intersections are arranged along the axial direction is performed, the hanger wire is supplied from the one end and in this state, and 
 second to fifth steps are repeated by predetermined times; 
 the second step of positioning the spiral forming dice at locations where the Z-winding wall faces or S-winding wall faces are sequentially connected to each other; 
 the third step of keeping the spiral forming dice in their positioned state and for forming the Z-winding spiral or S-winding spiral having a predetermined number of windings; 
 the fourth step of position shifting the spiral forming dice to locations where the S-winding wall faces or Z-winding wall faces are sequentially connected to each other; and 
 the fifth step of keeping the spiral forming dice in their positioned state and for forming the S-winding spiral or Z-winding spiral having a predetermined number of windings. 
 
     
     
       28. The cable hanger production method according to  claim 27 , wherein the second step and the fourth step are carried out by simultaneously rotating second and subsequent spiral forming dice with respect to the first spiral forming die as a reference as counted from a hanger wire supply end of the housing, and by stopping the spiral forming dice in the order from a front side.